What Li Lu Taught at Columbia: Value Investing as a Way of Thinking

2026-02-28 00:00
分类: 投资理论
源文件: finews/li-lu-columbia-value-investing.md
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In this lecture, Li Lu describes value investing not as a formula, but as a personality test and a lifelong discipline. His argument is simple: if you are wired like the crowd, you will eventually behave like the crowd. If you want value-investing outcomes, you need value-investing temperament.

1) Value investing starts with identity, not technique

Li Lu repeatedly returns to one question: Are you truly comfortable being in the minority? He frames markets as being designed for the “95%” who need constant activity, short-term feedback, and social confirmation. Value investors are the minority “5%” who can tolerate being early, lonely, and misunderstood.

“The stock market is not created for this type of people... and that’s exactly where your opportunity is.”

He says many students can learn valuation mechanics, but fewer can endure the social and emotional pressure of acting against consensus for extended periods.

2) The three core attitudes

He summarizes his practical framework into three habits:

These are not slogans. They drive portfolio construction, research depth, and position sizing.

3) Research as investigative journalism

A major theme in the lecture is process intensity. Li Lu describes his work as closer to investigative reporting than spreadsheet modeling:

His point is that many opportunities look “obvious” only after someone else did the uncomfortable work.

4) “Cheap” is a beginning, not a conclusion

In several examples, he walks students through a rapid first pass (market cap, book value quality, normalized earnings, capital employed), then asks the real question: what am I missing?

Undervaluation alone is insufficient. You still need to verify:

5) Position size when asymmetry is real

Li Lu critiques institutional habits that default to tiny positions even after conviction is earned. His argument is blunt: if the downside is heavily protected and your work is complete, tiny positions are often a form of psychological hedging, not risk management.

He distinguishes between initial statistical cheapness and earned conviction. Only the second justifies meaningful concentration.

6) Most returns come from very few true insights

One of the strongest sections of the lecture is about power-law outcomes. He says a value investor’s lifetime performance can be driven by a handful of deep, non-obvious insights, not by constant activity.

Hence his insistence on broad curiosity across business, history, psychology, technology, and human behavior.

7) Selling evolves with quality and tax reality

He notes his own evolution: early in his career, if he wouldn’t buy a stock at current price, he sold it. Later, for rare compounding businesses, he became more reluctant to sell due to:

In his words: in rare cases, the best action is often “don’t interrupt compounding.”

8) Final takeaway: temperament × preparation × timing

Great opportunities are not evenly distributed through time. Some years offer many, some nearly none. What remains under your control is preparation.

“You may only get a handful of truly great opportunities in a lifetime. Be ready when they come.”


Note: This post is an edited English reconstruction from ASR transcript segments. Wording has been cleaned for clarity while preserving core ideas.